9966746 has 8 divisors (see below), whose sum is σ = 14963520. Its totient is φ = 4978908.

The previous prime is 9966721. The next prime is 9966769. The reversal of 9966746 is 6476699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 9966746.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3215 + ... + 5501.

It is an arithmetic number, because the mean of its divisors is an integer number (1870440).

Almost surely, 2^9966746 is an apocalyptic number.

9966746 is a deficient number, since it is larger than the sum of its proper divisors (4996774).

9966746 is a wasteful number, since it uses less digits than its factorization.

9966746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4468.

The product of its digits is 489888, while the sum is 47.

The square root of 9966746 is about 3157.0153626487. The cubic root of 9966746 is about 215.2043918941.

Subtracting from 9966746 its sum of digits (47), we obtain a palindrome (9966699).

The spelling of 9966746 in words is "nine million, nine hundred sixty-six thousand, seven hundred forty-six".